/* ============================================
   THORIUMAI — Landing Page
   Social-first discovery experience
   ============================================ */

.landing { overflow-x: hidden; }

/* ── Landing Nav ── */
.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(7, 7, 7, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(31, 31, 31, 0.6);
  transition: background 0.3s;
}

.landing-nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.landing-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
  flex-shrink: 0;
}

.landing-logo-main {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.5px;
}

.landing-logo-sub {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--muted);
  letter-spacing: 2.5px;
  margin-top: 2px;
}

.landing-nav-links {
  display: flex;
  gap: 24px;
  margin-left: auto;
  align-items: center;
}

.landing-nav-link {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--mid);
  text-decoration: none;
  transition: color 0.15s;
}

.landing-nav-link:hover { color: var(--white); }

.landing-nav-signin {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--off-white);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-mid);
  padding: 7px 18px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}

.landing-nav-signin:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--muted);
}

.landing-nav-enter {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--black);
  background: var(--accent);
  padding: 7px 18px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  text-decoration: none;
}

.landing-nav-enter:hover { background: var(--accent-dim); }

/* ── Hero Section ── */
.landing-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 32px 80px;
  position: relative;
  overflow: hidden;
}

.landing-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(232, 64, 28, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(201, 168, 76, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.landing-hero-inner {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.landing-hero-content { max-width: 580px; }

.landing-eyebrow {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.landing-eyebrow::before {
  content: '';
  width: 16px;
  height: 1px;
  background: var(--accent);
}

.landing-headline {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.landing-headline em {
  font-style: italic;
  color: var(--accent);
}

.landing-deck {
  font-family: var(--sans);
  font-size: 1.1rem;
  color: var(--mid);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}

.landing-ctas {
  display: flex;
  gap: 12px;
  align-items: center;
}

.landing-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--black);
  background: var(--accent);
  padding: 13px 28px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.15s;
  border: none;
  cursor: pointer;
}

.landing-cta-primary:hover { background: var(--accent-dim); }

.landing-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--off-white);
  padding: 13px 24px;
  text-decoration: none;
  transition: color 0.15s;
}

.landing-cta-secondary:hover { color: var(--accent); }

/* ── People Mosaic (hero right side) ── */
.landing-mosaic {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-width: 460px;
  opacity: 0.9;
}

.mosaic-card {
  background: var(--near-black);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  transition: all 0.3s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.mosaic-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.mosaic-card:nth-child(2) { transform: translateY(20px); }
.mosaic-card:nth-child(5) { transform: translateY(20px); }
.mosaic-card:nth-child(2):hover { transform: translateY(18px); }
.mosaic-card:nth-child(5):hover { transform: translateY(18px); }

.mosaic-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--border-mid);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--off-white);
}

.mosaic-name {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--off-white);
  margin-bottom: 2px;
}

.mosaic-role {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mosaic-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.5rem;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 1px 6px;
  border-radius: 3px;
  margin-top: 6px;
  letter-spacing: 0.04em;
}

/* Mosaic avatar overflow for images */
.mosaic-avatar {
  overflow: hidden;
}

.mosaic-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* Mosaic micro-bio */
.mosaic-bio {
  font-family: var(--sans);
  font-size: 0.5rem;
  color: var(--muted);
  line-height: 1.35;
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-style: italic;
}

/* Spotlight avatar overflow for images */
.spotlight-avatar {
  overflow: hidden;
}

.spotlight-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* Spotlight micro-bio */
.spotlight-bio {
  font-family: var(--sans);
  font-size: 0.72rem;
  color: var(--mid);
  line-height: 1.4;
  margin-bottom: 8px;
  font-style: italic;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Stats Strip ── */
.landing-stats {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  max-width: 1400px;
  margin: 0 auto;
}

.landing-stat {
  flex: 1;
  padding: 28px 32px;
  border-right: 1px solid var(--border);
  text-align: center;
}

.landing-stat:last-child { border-right: none; }

.landing-stat-value {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.landing-stat-label {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ── How It Works ── */
.landing-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 80px 32px;
}

.landing-section-eyebrow {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.landing-section-title {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 48px;
  max-width: 600px;
  line-height: 1.15;
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.landing-feature {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.2s;
}

.landing-feature:hover { border-color: var(--border-mid); }

.landing-feature-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
  opacity: 0.85;
}

.landing-feature-title {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.landing-feature-text {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--mid);
  line-height: 1.6;
}

/* ── People Spotlight ── */
.landing-spotlight {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.spotlight-card {
  background: var(--near-black);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  transition: all 0.2s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.spotlight-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.spotlight-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--border-mid);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--off-white);
}

.spotlight-name {
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--off-white);
  margin-bottom: 4px;
}

.spotlight-role {
  font-family: var(--sans);
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
  margin-bottom: 10px;
}

.spotlight-insight {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--accent);
  padding: 4px 8px;
  background: var(--accent-glow);
  border-radius: 4px;
  display: inline-block;
}

/* ── Research Proof Strip ── */
.landing-proof {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
}

.landing-proof-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}

.landing-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.proof-card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.15s;
  cursor: pointer;
  text-decoration: none;
  display: block;
}

.proof-card:hover { border-color: var(--border-mid); }

.proof-tag {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.proof-title {
  font-family: var(--serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
  line-height: 1.25;
}

.proof-deck {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ── Final CTA ── */
.landing-final-cta {
  text-align: center;
  padding: 100px 32px;
  max-width: 640px;
  margin: 0 auto;
}

.landing-final-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 20px;
}

.landing-final-text {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--mid);
  line-height: 1.7;
  margin-bottom: 32px;
}

/* ── Landing Footer ── */
.landing-footer {
  border-top: 1px solid var(--border);
  padding: 40px 32px;
}

.landing-footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.landing-footer-copy {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--muted);
}

.landing-footer-links {
  display: flex;
  gap: 20px;
}

.landing-footer-link {
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

.landing-footer-link:hover { color: var(--off-white); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .landing-hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .landing-mosaic { max-width: 360px; }
  .landing-features { grid-template-columns: 1fr 1fr; }
  .landing-spotlight { grid-template-columns: 1fr 1fr; }
  .landing-proof-grid { grid-template-columns: 1fr 1fr; }
  .landing-stats { flex-wrap: wrap; }
  .landing-stat { min-width: 50%; }
}

@media (max-width: 640px) {
  .landing-hero { padding: 100px 20px 60px; }
  .landing-mosaic { grid-template-columns: repeat(2, 1fr); max-width: 280px; }
  .mosaic-card:nth-child(2),
  .mosaic-card:nth-child(5) { transform: none; }
  .landing-features { grid-template-columns: 1fr; }
  .landing-spotlight { grid-template-columns: 1fr; }
  .landing-proof-grid { grid-template-columns: 1fr; }
  .landing-nav-links { gap: 12px; }
  .landing-nav-link { display: none; }
  .landing-section { padding: 48px 20px; }
  .landing-stats { flex-direction: column; }
  .landing-stat { border-right: none; border-bottom: 1px solid var(--border); }
  .landing-stat:last-child { border-bottom: none; }
}